I tend to lean the same way you do regarding candidates that don't necessarily have a political background because I am very much a Conservative fiscally. I like what Trump said about fixing some of our social programs as well as bringing back our economy. Unfortunately, I think we need someone who also is going to be able to play the game (and be strong) when it comes to foreign policies. And that is where most of the non political candidates fall apart for me. While I think we should build that wall between us and Mexico I also believe it is in our best interest to not disassociate ourselves from our neighbor like Trump was saying. Because Mexico could allow our enemies right up to our back door. And we could get screwed without lube. And as some here know, that would hurt! 
Having Mexico as our friend helps put a buffer between our border and South America. We need to deal with Iran and Russia with a strong hand and the might of our strong military. Whether it is going back into places we don't want to be, or just rattle our sabre a bit to see if they back down. We also need to treat our allies like our best friends and show unity amongst us to the rest of the world. I just don't see Trump or Fiorina being able to lead us down these slippery slopes. I feel it takes more of a statesman than these 2 are.
With all this said I do like Fiorina a bit more than Trump. I believe she is a bit more of a statesman (statesperson?) than he is. And a better leader. But I have to say I think so far for me I like (In no particular order) Pataki, Jindal and Walker. I hope one of these 3 will get the nod. JMHO 
I've heard many people make similar comments about lack of foreign policy experience (not against Trump particularly, but against any "outsider" candidate.) Let me, respectfully, offer a different viewpoint: Historically, we elect more governors than senators. Governors have little to no foreign policy experience except possibly border states, but then it's really dealing with Mexico and not other international affairs. Even senators may have little foreign policy experience. Obama is a good example, but I could say the same about most of the candidates. Besides Lindsey Graham and Hillary - who else has had much foreign policy experience? Trump and Fiorina have conducted business internationally and while that doesn't necessarily make you an expert in national foreign policy, but it does count for something and I do think it could give you a leg up on a governor or junior senator.
I get what you're saying about Fiorina being the better statesman and I like her as a candidate, but I don't mind having a strong leader in the white house that isn't afraid to ruffle some feathers, tells it like it is, and quits worrying about being PC. If we want to see Washington reformed to any extent, I think it's going to take a firebrand like a Trump to shake up that town. We've had those kinds of people in the white house before, it was just a really long time ago.
All that said - I'd take anyone over Hillary so whatever shakes out, I will fully support her challenger.